Water-heating apparatus



D. F. GARVEY WATER HEATING APPARATUS Filed May 23, 1928 Aug. 21, i929.

CTI

Patented Aug. 27, 1929.

UNITED STATES D AvIIJ F. GARVEY, or CHICAGO, ILLINOIS.

WATER-HEATIN G APPARATUS.

Application led May 23, 1928. Serial No. 279,868.

The invention relates to water heating apparatus and more particularlyto that apparatus which is adapted to be connected to the water jacketof a steam boiler or similar heat producing device and is operative toheat the water in a storage tank.

One object of the present invention is to provide an apparatus of thischaracter in which the various parts consist of standard pipes,fittings, couplings and plugs so that no bolts or similar connectingmeans are necessary and the assembly operation is facilitated.

Another object of the invention is to provide a water heating apparatusin which the parts are so arranged that access may be had thereto forcleaning and the maximum heating eiiiciency is obtained.

A further object of the invention is to provide a heating apparatus ofthe aforementioned type in which provision is made for readily removingthe parts for repair or replacement purposes.

A still further object of the inventionis to provide a water heatingapparatus which is of a new and improved construction and may befabricated or constructed at a comparatively low cost.

Other objects and advantages will be manifest from a consideration ofthe following detailed description.

The invention consists in the several novel Jfeatures hereinafter setforth and more particularly defined by the claims at the conclusionhereof. l

In the drawing which accompanies and forms a part of this specificationor disclosure and in which like numerals of reference denotecorresponding parts throughout the several views:

Figure 1 is a vertical longitudinal section of a water heating apparatusembodying the invention;

Figure 2 is an end view; and

Figure 3 is a transverse section taken on the line 3--3 of Figure 1 andillustrating in detail the eccentric position of the discharge pipe forthe water that is to be heated.

rlhe invention is exemplified in an apparatus which is adapted to beassociated with a steam boiler or hot water circulating system and isoperative to heat the water in a storage tank (not shown). Although theapparatus may be used in connection with any wat-er storage tank, it isparticularly and preferably adapted to be used in conextend vertically,a goose neck or drop is provided which insures the proper and desiredcirculating action of the cold water through the heating apparatus. Theupper end of said pipe 5 is connected to an L-fitting 7 by a screwconnection 8. A horizontal discharge or distributor pipe 9 has one endthereof provided with a male screw thread 10 which operates to connectsaid pipe to the upper end of the L-fitting 7 An elongated circulatingpipe 11 has one end thereof positioned around the inner or discharge endof the pipe 9. This circulating pipe is substantially larger in diameterthan the distributor pipe 9 and is arranged so that the latter restsupon the bottom thereof as shown in Figures 1 and 3. By positioning thepipe 11 in this manner, the top is spaced from the upper portion of thedischarge pipe 9 and forms with the latter a conduit or passageway 12through which the cold water passes to an outlet pipe 13. The end of thepipe 9 that extends into or is enclosed by the circulating pipe 11 iscut angularly as at 14 so as to form a nozzle which operates to directthe water toward the bottom of the pipe 11 as shown by the arrows inFigure 1. In forming the discharge nozzle on the distributor pipe 9, thecut is preferably made at an angle of approximately 30 and so that theupper portion of said pipe 9 extends or overhangs, the bottom portion. Acharacteristic and an advantage of forming the nozzle in this manner isthat no auxiliary or supplemental water directing meansV is necessary inthe fabrication of the apparatus. The cold water from the inlet pipe 5flows to the outer end of the pipe 11 along the bottom and then isdeflected upwards and flows in the opposite or reverse direction alongthe top of said pipe to the conduit or passageway 12. The water flowsthrough this conduit to the outlet pipe 13. During the aforementionedcirculatory movement, the water is heated as poses.` The plug 17 isprovided with apolygonal head 1'9 whereby a wrench or sinnlar turningtool, may be applied. The lower Vend of the outlet pipe 13 is connectedto the central branch of a. T-itting 20. One of the .end branches ofthis fitting is secured to a .screw thready 21 on the inner end of thecirculat'ing pipe 11. The other end branch of the fitting 2O is securedto a nipple 22 which forms a continuation of the circulating pipe 11.The end of this nipple is connected to the' female thread of a coupling24k. The latter is provided with an eccentric boss 25 `through which theouter or connected end of the distributor pipe 9 extends. A bushing 26`is interposed between the screw thread 10 on` said? pipe 9 and a femalethread which is formedy in the boss 25. This bushing forms a closure forthe nipple 22 and operates in conjunction with the boss ofthecouplingf24 `to properly position the distributor pipe 9 at the bottomof the circulating pipe 11. The upper end of the pipe 13 is providedwith a union or coupling 27 whereby said pipe isconnected to the top orside of the water supply tank. Packing of any suitable character isinserted between the bushing 26 and the upper end of the fitting 7to-prevent any water leakage around the screw thread 10.

The. circulating pipe 11 is disposed within a pipe or casing 28 which issubstantially larger indiameter than the circulating pipe and formstherewith a acket 29. A heating medium` such as hot water or steam iscir`- culatedthrough this jacket so as to heat the cold. water from thesupply tank as it circulates through the pipes 9 and 11. The mediumreferred to is supplied to the jacket 29 by means of a. verticallyextending pipe 30 which,.if desired and convenient,v isA connectedto.the water jacket of a steamy boiler or similar hot water supply system.The lower endv ofthel pipe 30 isconnected to the central branch of a'li-fitting 31. One end branchof this fitting is connected by a screwthread connection 32. to the inlet end of the casin'g28 and the otherend branch is closed by a bushing 33 which is mounted on and issecuredtothe screw-v thread 21 on the inner end of the circulating pipe11'. The bushing 33. opera-tes to. support and position the circulatingpipe 111 with respect to the pipe 28. By arranging the inlet pipe 30v ofthe hot water supply' so that it isf connected to the inner end of thecirculating pipel 11 and is positioned in close proximity to the outletpipe 13, the water leaving the circulating pipe receives the maximumamount of heat and consequently is the hottest. Obviously, this is ofadvantage inasmuch as the hottest portion of the heating medium isassociatedV with and gives the final heating action to the watercirculating back into the supply tank. Packing material is insertedbetween the bushing 33 and the T- fitting 2O to prevent leakage aroundthe inner end of the circulating pipe. The e2;- posed part of thebushing is provided with a head 33L for turning purposes.

The hot water circulated through the water jacket 28 is discharged andreturned to the source of supply through an outlet pipe 34. The latteris connected to the central branch of a T-litting 35. @ne of the endbranches of this fitting is connected by a screw thread connection 3G tothe outer end of the pipe 28. The other end branch of the fitting isclosed by a removable plug 37. A head 38 is formed on the outer face ofthis p lug for use in turning the plug` into place. Vhen the'plug 37removed. access may be had tothe water acket 29. The coupling 16 ispositioned within the "f-fillin 35 shown in Figure 1 and a leg 39 isconnected thereto. This leg operates to support the distal end of thecirculating pipe 11 in concentric relation with respect to the casing.

The operation of the apparatus will be as follows.. The coldA water atthe bottom of the water supply tank will be forced by virtue of itspressure through the inlet pipe 5 and into the distributing pipe 9 whereit is subjected to the action of the nozxle end and is caused to flowalong the bottom of the circulating pipe 11. During this travel or flow,the cold water is heated by the hot water which circulates through thewater jacket 29. As the cold water reaches the end of the pipe 11, it isdeflected upwardly by the plug 17 and then returns along the 'mp of saidpipe to the passageway 12 through which it flows to the outlet pipe. 13and thence to the supply tank. lilhen it is lesiredito remove thedischarge pipe 9 and the circulating pipe 11. for repair or replacementpurposes, the unions 6 and 27 are uncoupled and the bushing 33 isremoved from the fitting- 31. This frees said two pipes` and permitsthem to'be withdrawn longitudinally from the inlet end of the casing orpipe 8. In the event that it is desired to remove the discharge pipeonly, the union G is uncenpled` and the bushing 26 is withdrawn. Thisfrees the discharge pipe so that it may be withdrawn lengthwise throughthe eccentric coupling 24 and the nipple 22. lVhen it is desired. tovclean the pipes 9', 11 and 28. the plugs 17 and 37 are removed.

Thev water heating apparatus disclosed herein is extremely simple andconsists only loo lill) Cil of standard pipes, littings, couplings andplugs. It may be readily assembled and utilizes no bolts or othersecuring means whatsoever.

The invention is not to be understood as limited or restricted to thespecific details set forth since these may be modified within the scopeof the appended claims, without departing from the spirit and scope ofthe invention.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent, is:

V1. In a water heat-ing apparatus of the character described, thecombination of a pipe-element having one end thereof connected toreceive cold water from a source of supply, a pipe having one endthereof closed and the other end extending around the other end of thepipe-element and forming therewith a conduit through which the waterflows after circulating to the said one end of the pipe and back, anoutlet pipe connected to receive the water from the conduit, meansforming a jacket around said circulatii'ig` pipe, and means comprisingan inlet and an outlet pipe for circulating a heating medium through thejacket.

2; In a water heating apparatus of the character described, thecombination of a horizontal pipe-element having one end thereofconnected to receive cold water from a source of supply, a horizontalpipe having one end thereof closed and the other end extending aroundthe other end of the pipeelement and forming therewith a conduit throughwhich the water flows after circulating to the said one end of the pipeand back, an outlet pipe connected to receive the water from theconduit, a tubular casing forming a jacket around said circulating pipe,and an inlet pipe and an outlet pipe connected to the ends of thecasing, respectively, for circulating a heating medium through thejacket.

3. In a water heating apparatus of the character described, thecombination of a pipe-element having one end thereof connected toreceive cold water from a source of supply, the other end of thepipe-element having means forming a discharge nozzle, a pipe having oneend thereof closed and the other end extending around the said other endof the pipe-element and forming therewith a conduit, the dischargenozzle. being arranged to cause the cold water to circulate to the Saidone end of the pipe and then back and through the conduit, an outletpipe connected to receive the water from said conduit, a casing forminga acket around the circulating pipe, and an inlet pipe and an outletpipe connected to the ends of said casing respectively, for circulatinga heating medium through the jacket.

l. In a Water heating apparatus of the Character described, thecombination of a horizontal pipe-element having one end thereofconnected to receive cold water from al source of supply, the otherendof the pipeelement being cut angular-ly to form a discharge nozzle, ahorizontal pipe having one end thereof closed and the other endextending around the said other end of the pipeelement and formingtherewith a conduit, the pipe being arranged so that the dischargenozzle is operative to cause the cold water to circulate along thebottom of the pipe in one direction and thence backwardly along the topand through the conduit, an outlet pipe connected to receive the waterfrom said conduit, a casing forming a jacket around the circulatingpipe, and an inlet pipe and an outlet pipe connected to the ends of saidcasing respectively, for circulating a heating medium through thejacket.

5. In a water heating apparatus, the coinbination of a pipe-elementhaving one end thereof connected to receive cold water from asource ofsupply, a pipe having one end thereof closed and the other end extendingaround the other end of the pipe-element and forming therewith, aconduit through which the cold water flows after circulating to the saidone end of the pipe and back, means for supporting the pipe-element ineccentric relation with respect to the circulating pipe, an outlet pipeconnected to the said other end of the` circulating pipe, for receivingthe circulated water from the conduit, a casing forming a jacket aroundthe circulating pipe, and an inlet pipe and an outlet pipe connected tothe ends of said casing respectively, for circulating a heating mediumthrough the jacket.

6. In a water heating apparatus, the coinbination of a horizontalpipe-element having one end thereof connected to receive cold water froma source of supply, a horizontal pipe having one end thereof closed andthe other end extending around the other end of the pipe-element andforming therewith a conduit through which the cold water flows aftercirculating to the said one end of the pipe and back, means connected tothe circulating pipe for supporting the pipe-element in eccentricrelation therewith, an outlet pipe connected to the said other end ofthe circulating pipe and adapted to receive the circulated Water fromthe conduit, a casing forining a jacket around the circulating pipe, andan inlet pipe and an outlet pipe connected to the ends of said casingrespectively, for circulating a heating medium through the jacket. Y j

7. In a water heating apparatus of the character described, thecombination of a horizontal pipe-element having one end thereofconnected to receive cold water from a source of supply, a horizontalpipe having one end thereof closed and the other end extending aroundthe other end of the pipeelement and forming therewith a conduit throughwhich the wate tiows a't'ter circulating to the said one end of the pipeand back, the pipe-element being positioned at the bottom of andeccentrically with respect to the circulating pipe, a coupling connectedto the said other end oi the circulating pipe and embodying means'forming an eccentric opening through which the said one end ot the 3ioe-elenient extends an outlet aine for 7 L receiving the water fromconduit, said outlet pipe being connected 'to the said other end ot thecirculating pipe, a casing forming a jacket around the circulating pipe,and an inlet pipe and an outlet pipe connected to the ends otl saidcasing respectively, for circulating a heating medium through thejacket.

8. In a water heating apparatus of the character described, thecombination ot a horizontal pipe-element having` one end `hereoiconnected to receive cold water trom a source of supply, a horizontalpipe having one end ther-cot closed and the other end extending aroundthe other end ot the pipe element and forming therewith a conduitthrough which the water ows after circula-ting to the said one end ofthe pipe and back, the pipe element being positioned at the bottoni ot'and eccentrically with respectto the circulating pipe, a couplingconnected to the said other end of the circulating pipe and providedwith a bushing having iormed therein an eccentric opening through whichthe said one end ot' the pipe-element extends, an outlet pipe forreceiving the water from the conduit, said outlet pipe being connectedto the said other end of the circulating pipe, a cz sing fo 1ming ajacket around the circulating pipe, and an inlet pipe and an outlet pipeconnected to the 4ends ot said casing respectively, Jiior circulating aheating inedium through the acket.

9. In a water heating apparatus of the character described, thecombination ol a pipe-element having one end thereof provided with ascrew thread and connected to receive cold water from a source ofsupply, a pipe having one end thereof closed and the other end extendingaround the other end ot the pipe-element and forming therewith a conduitthrough which the water flows after circulating to the said one end ofthe pipe and back, a coupling connected to the said. other end o't' thecirculating pipe and provided with means secured to the screw thread onthe pipe-element :tor supporting the pipe element in fixed relation withrespectto the circulating pipe, an outlet pipe for receiving the waterfrom the conduit, said outlet pipe being connected to the said other endof the circulating pipe, a casing forming a jacket around thecirculating pipe, and an inlet pipe and an outlet pipe connected to theends of said casing respectively, ,tor circulating a heating mediumthrough the jacket.

l0. In a water heating apparatus of the character described, thecombination of a pipe-element having one end thereof provided with a seew thread and connected to receive cold water from a source of supply, apipe having one end thereoiz .closed and the other end extending aroundthe other end oi the pipe-element and forming therewith a conduitthrough which the water i'iews after circulating to the said one end ofthe pipe and back, a coupling connected to the said other end ot thecirculating pipe and provided with means secured to the screw thread onthe pipo-element for supporting the pipe-element eccentrically withresoect to the circulating pipe, an outlet pipe for receiving the waterfrom the conduit, yid outlet pipe being connected to the said ier end otthe circulating pipe, a casing torining a acket around the circulatingpipe, and an inlet pipe and an outlet pipe connected to the ends ot saidcasing respectively, for circulating a heating medium through thejacket,

il. in a water heating apparatus oi" the character described, thecombination of a pipe-eli'finent having one end thereof con-- :iected toreceive cold water from a source el supply, a pipe having one endthereot el yh the other end ot' said pipe being provided with a screwthread and extending around the other end oi' the pipe-element so astorni therewith a conduit through which the cold water flows attercirculating to the said one end ot the pipe and back, a "--iittinghaving one end branch thereo't connected to the screw thread at the saidother end of the circulating pipe, a nipple extencing around the saidone end ot the pipe-element and having one end thereoit' connected tothe other branch ot the belting, a coupling connected to 'the other endot the nipple and provided with means closing the said other end of thecirculating pipe and tor supporting the pipe-element, a casing forming ajacket around the circulating pipe, and means for circulating a heating`medium through the jacket.

l2. ln a water heating apparatus, the conibination ot a pipe-elementhaving one end thereof connected to receive cold water terining a sourceof supply, a pipe having one end thereof closed, the other end ot saidpipe being` provided with ascrew thread. and extending around the otherend ot the pipeelenient so as to form therewith a conduit through whichthe cold water flows utter circulating to the said one end ot the pipeand back, an outlet pipe connected to receive the water from. theconduit, a tubular casing 'forming a jacket around the circulating pipe,a T-ftting connected to one end of the casing and having a bushingsecured to the screw thread at the said other end of the circulatingpipe, and means for circulating a heating medium through the jacketcomprising an inlet pipe connected to the 'T-itting and an outlet pipeconnected to the other end of the casing.

13. In a Water heating apparatus, the combination of a pipe elementhaving one end thereof connected to receive cold Water orming a sourceot supply, a pipe having one end thereot` closed, the other end of saidpipe being provided With a screw thread and extending around the otherend ot the pipe element so as to form therewith a conduit through Whichthe cold Water flows after circulating to the said one end oi the pipeand back, an outlet pipe connected to receive the Water from theconduit, a tubular casing forming a jacket around the circulating pipe,a Tefitting connected to one end oi the casing and having a removablebushing secured to the screw thread at the Said other end of thecirculating pipe, and means for circulating a heating medium through thejacket comprising an inlet pipe connected to the T-itting and an outletpipe connected to the other end of the casing.

14. In a Water heating apparatus of the character described, thecombination of a pipe-element having one end connected to receive coldWater forming a source of supply, a pipe having at one end thereof acoupling With a removable plug, the other end of the pipe extendingaround the other end of the pipeeelement and forming therewith a conduitthrough which the cold Water loWs after circulating to the other end ofsaid pipe and back, an outlet pipe for receiving the Water from theconduit, said outlet pipe being connected to the said other end of thecirculating pipe, a tubular casing forming a jacket around saidcirculating pipe, and means for circulating a heating medium through thejacket comprising an inlet pipe and an outlet pipe connected to the endsof the casing respectively.

15. In a Water heating apparatus of the character described, thecombination or" a pipe-element having one end connected to receive coldWater forming a source of supply, a pipe having at one end thereof(l acoupling With a removable plug, the other end of the pipe extendingaround the other end of the pipe-element and forming therewith a conduitthrough which the cold Water loWs after circulating to the other end ofsaid pipe and back, an outlet pipe for receiving the Water from theconduit, said outlet pipe being connected to the said other end of thecirculating pipe, a tubular casing extending around said circulatingpipe and provided With a 'itting at one end thereof, a plug removabl7connected to one branch of the fitting, and means for circulating aheating medium through the jacket comprising an inlet pipe and an outletpipe connected to one of the other branches of the tting.

Signed at Chicago, Illinois, this 16th day of May, 1928.

DAVID F. GARVEY.

